Duct tape.
Cheap. Fixes everything.
Matches.
In a waterproof container.
Pocket-knife and a knife witha 4” blade or bigger.
Knife sharpener also.
Cheap. Fixes everything.
Good point.
May I add WD-40? With duct tape and WD-40 you can fix anything:
If it moves and it's not supposed to use duct tape.
If it doesn't move and it's supposed to use WD-40.
More seriously WD-40 is a good rust preventive, lubricant, for some types of crud a good cleaner/remover, and in a pinch can help you light wet wood.
Though knife sharpener is handy, its just added weight, and something to keep track of. There are plenty of flat stones that can do the trick. (unless of course, you’ve never sharpened a knife with a sharpening stone or regular stone)